From a6318a3baf38237ce384ca27536d3a8bd9898da3 Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Fri, 13 Sep 2002 04:30:18 +0000
Subject: [PATCH] enhanced no_pogo_stick control

---
 qw/include/client.h |  1 +
 qw/include/pmove.h  |  1 +
 qw/include/server.h |  1 +
 qw/source/cl_pred.c |  2 ++
 qw/source/pmove.c   | 18 ++++++++++++++++--
 qw/source/sv_user.c |  2 ++
 6 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/qw/include/client.h b/qw/include/client.h
index 0f6c30838..756f3e0df 100644
--- a/qw/include/client.h
+++ b/qw/include/client.h
@@ -67,6 +67,7 @@ typedef struct player_state_s {
 	float		waterjumptime;
 	int			onground;		// -1 = in air, else pmove entity number
 	int			oldbuttons;
+	int			oldonground;
 
 	// QSG2
 	byte		glow_size;
diff --git a/qw/include/pmove.h b/qw/include/pmove.h
index ad0567385..4dec647c8 100644
--- a/qw/include/pmove.h
+++ b/qw/include/pmove.h
@@ -73,6 +73,7 @@ typedef struct
 	vec3_t	angles;
 	vec3_t	velocity;
 	int		oldbuttons;
+	int		oldonground;;
 	float		waterjumptime;
 	qboolean	dead;
 	qboolean	flying;
diff --git a/qw/include/server.h b/qw/include/server.h
index 2e1fe7d93..b12600be4 100644
--- a/qw/include/server.h
+++ b/qw/include/server.h
@@ -166,6 +166,7 @@ typedef struct client_s
 	usercmd_t		lastcmd;			// for filling in big drops and partial predictions
 	double			localtime;			// of last message
 	int				oldbuttons;
+	int				oldonground;
 
 	float			maxspeed;			// localized maxspeed
 	float			entgravity;			// localized ent gravity
diff --git a/qw/source/cl_pred.c b/qw/source/cl_pred.c
index 09d4b0b0c..171b67839 100644
--- a/qw/source/cl_pred.c
+++ b/qw/source/cl_pred.c
@@ -78,6 +78,7 @@ CL_PredictUsercmd (player_state_t * from, player_state_t * to, usercmd_t *u,
 	VectorCopy (from->velocity, pmove.velocity);
 
 	pmove.oldbuttons = from->oldbuttons;
+	pmove.oldonground = from->oldonground;
 	pmove.waterjumptime = from->waterjumptime;
 	pmove.dead = cl.stats[STAT_HEALTH] <= 0;
 	if (clientplayer)
@@ -91,6 +92,7 @@ CL_PredictUsercmd (player_state_t * from, player_state_t * to, usercmd_t *u,
 	PlayerMove ();
 	to->waterjumptime = pmove.waterjumptime;
 	to->oldbuttons = pmove.oldbuttons;	// Tonik
+	to->oldonground = pmove.oldonground;
 	VectorCopy (pmove.origin, to->origin);
 	VectorCopy (pmove.angles, to->viewangles);
 	VectorCopy (pmove.velocity, to->velocity);
diff --git a/qw/source/pmove.c b/qw/source/pmove.c
index 9dc3075c8..eef8904f5 100644
--- a/qw/source/pmove.c
+++ b/qw/source/pmove.c
@@ -33,6 +33,7 @@ static const char rcsid[] =
 
 #include <math.h>
 
+#include "QF/console.h"
 #include "QF/cvar.h"
 #include "QF/qtypes.h"
 
@@ -69,7 +70,9 @@ void
 Pmove_Init_Cvars (void)
 {
 	no_pogo_stick = Cvar_Get ("no_pogo_stick", "0", CVAR_SERVERINFO, Cvar_Info,
-							  "disable the ability to pogo stick");
+							  "disable the ability to pogo stick: 0 pogo "
+							  "alowed, 1 no pogo, 2 pogo but high friction, 3 "
+							  "high friction and no pogo");
 }
 
 #define	STEPSIZE	18
@@ -641,7 +644,7 @@ JumpButton (void)
 	}
 
 	if (onground == -1) {
-		if (no_pogo_stick->int_val)
+		if (no_pogo_stick->int_val & 1)
 			pmove.oldbuttons |= BUTTON_JUMP;	// don't jump again until
 												// released
 		return;							// in air, so no effect
@@ -824,6 +827,17 @@ PlayerMove (void)
 	// set onground, watertype, and waterlevel
 	PM_CategorizePosition ();
 
+	if (no_pogo_stick->int_val & 2) {
+		if (onground != -1 && pmove.oldonground == -1) {	// just landed
+			float save = movevars.friction;
+			pmove.waterjumptime = 0;
+			movevars.friction *= 3;
+			PM_Friction ();
+			movevars.friction = save;
+		}
+	}
+	pmove.oldonground = onground;
+
 	if (waterlevel == 2)
 		CheckWaterJump ();
 
diff --git a/qw/source/sv_user.c b/qw/source/sv_user.c
index de257f0bc..f9eb271e8 100644
--- a/qw/source/sv_user.c
+++ b/qw/source/sv_user.c
@@ -1500,6 +1500,7 @@ SV_RunCmd (usercmd_t *ucmd, qboolean inside)
 	pmove.cmd = *ucmd;
 	pmove.dead = SVfloat (sv_player, health) <= 0;
 	pmove.oldbuttons = host_client->oldbuttons;
+	pmove.oldonground = host_client->oldonground;
 
 	movevars.entgravity = host_client->entgravity;
 	movevars.maxspeed = host_client->maxspeed;
@@ -1532,6 +1533,7 @@ SV_RunCmd (usercmd_t *ucmd, qboolean inside)
 #endif
 
 	host_client->oldbuttons = pmove.oldbuttons;
+	host_client->oldonground = pmove.oldonground;
 	SVfloat (sv_player, teleport_time) = pmove.waterjumptime;
 	SVfloat (sv_player, waterlevel) = waterlevel;
 	SVfloat (sv_player, watertype) = watertype;